diff --git a/src/storage/tablet/ob_i_tablet_mds_interface.ipp b/src/storage/tablet/ob_i_tablet_mds_interface.ipp
index b233d98e75..f710160d6d 100644
--- a/src/storage/tablet/ob_i_tablet_mds_interface.ipp
+++ b/src/storage/tablet/ob_i_tablet_mds_interface.ipp
@@ -195,20 +195,16 @@ inline int ObITabletMdsInterface::get_mds_data_from_tablet<ObTabletBindingMdsUse
   #define PRINT_WRAPPER KR(ret), K(aux_tablet_info_addr), K(*this)
   MDS_TG(10_ms);
   int ret = OB_SUCCESS;
-  ObTabletBindingMdsUserData *aux_tablet_info = nullptr;
-  ObArenaAllocator allocator("mds_reader");
+  ObTabletBindingMdsUserData aux_tablet_info;
   const ObTabletComplexAddr<mds::MdsDumpKV> &aux_tablet_info_addr = get_mds_data_().aux_tablet_info_.committed_kv_;
 
-  if (CLICK_FAIL(ObTabletMdsData::load_aux_tablet_info(allocator, aux_tablet_info_addr, aux_tablet_info))) {
+  if (CLICK_FAIL(ObTabletMdsData::load_aux_tablet_info(aux_tablet_info_addr, aux_tablet_info))) {
     MDS_LOG_GET(WARN, "failed to load auto inc seq");
-  } else if (nullptr == aux_tablet_info) {
+  } else if (!aux_tablet_info.is_valid()) {
     ret = OB_EMPTY_RESULT;
-  } else if (CLICK_FAIL(read_op(*aux_tablet_info))) {
+  } else if (CLICK_FAIL(read_op(aux_tablet_info))) {
     MDS_LOG_GET(WARN, "failed to read_op");
   }
-
-  ObTabletObjLoadHelper::free(allocator, aux_tablet_info);
-
   return ret;
   #undef PRINT_WRAPPER
 }
diff --git a/src/storage/tablet/ob_tablet_mds_data.cpp b/src/storage/tablet/ob_tablet_mds_data.cpp
index 3426867f1a..ad95a10d92 100644
--- a/src/storage/tablet/ob_tablet_mds_data.cpp
+++ b/src/storage/tablet/ob_tablet_mds_data.cpp
@@ -1153,30 +1153,24 @@ int ObTabletMdsData::load_auto_inc_seq(
 }
 
 int ObTabletMdsData::load_aux_tablet_info(
-    common::ObIAllocator &allocator,
     const ObTabletComplexAddr<mds::MdsDumpKV> &complex_addr,
-    ObTabletBindingMdsUserData *&aux_tablet_info)
+    ObTabletBindingMdsUserData &aux_tablet_info)
 {
   int ret = OB_SUCCESS;
-  aux_tablet_info = nullptr;
-  ObTabletBindingMdsUserData *ptr = nullptr;
+  aux_tablet_info.reset();
 
   if (OB_UNLIKELY(!complex_addr.is_valid())) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid addr", K(ret), K(complex_addr));
   } else if (complex_addr.is_none_object()) {
     // do nothing
-  } else if (OB_FAIL(ObTabletObjLoadHelper::alloc_and_new(allocator, ptr))) {
-    LOG_WARN("failed to alloc and new", K(ret));
   } else if (complex_addr.is_memory_object()) {
     const mds::MdsDumpKV *dump_kv = complex_addr.ptr_;
     const common::ObString &str = dump_kv->v_.user_data_;
     int64_t pos = 0;
     if (!dump_kv->is_valid() || str.empty()) {
-      ObTabletObjLoadHelper::free(allocator, ptr);
-      ptr = nullptr;
       LOG_INFO("read empty aux tablet info", K(ret), K(complex_addr));
-    } else if (OB_FAIL(ptr->deserialize(str.ptr(), str.length(), pos))) {
+    } else if (OB_FAIL(aux_tablet_info.deserialize(str.ptr(), str.length(), pos))) {
       LOG_WARN("failed to deserialize aux tablet info", K(ret), K(str));
     }
   } else if (complex_addr.is_disk_object()) {
@@ -1195,10 +1189,8 @@ int ObTabletMdsData::load_aux_tablet_info(
       LOG_WARN("unexpected null member", K(ret));
     } else if (!aux_tablet_info_cache->is_valid()) {
       // no need to copy
-      ObTabletObjLoadHelper::free(allocator, ptr);
-      ptr = nullptr;
       LOG_INFO("empty aux tablet info", K(ret));
-    } else if (OB_FAIL(ptr->assign(*aux_tablet_info_cache))) {
+    } else if (OB_FAIL(aux_tablet_info.assign(*aux_tablet_info_cache))) {
       LOG_WARN("failed to copy", K(ret));
     }
   } else {
@@ -1206,14 +1198,6 @@ int ObTabletMdsData::load_aux_tablet_info(
     LOG_WARN("unexpected complex addr type", K(ret), K(complex_addr));
   }
 
-  if (OB_FAIL(ret)) {
-    if (nullptr != ptr) {
-      allocator.free(ptr);
-    }
-  } else {
-    aux_tablet_info = ptr;
-  }
-
   return ret;
 }
 
diff --git a/src/storage/tablet/ob_tablet_mds_data.h b/src/storage/tablet/ob_tablet_mds_data.h
index 431a8067b5..0bb5075ef7 100644
--- a/src/storage/tablet/ob_tablet_mds_data.h
+++ b/src/storage/tablet/ob_tablet_mds_data.h
@@ -127,9 +127,8 @@ public:
       const ObTabletComplexAddr<share::ObTabletAutoincSeq> &complex_addr,
       share::ObTabletAutoincSeq *&auto_inc_seq);
   static int load_aux_tablet_info(
-      common::ObIAllocator &allocator,
       const ObTabletComplexAddr<mds::MdsDumpKV> &complex_addr,
-      ObTabletBindingMdsUserData *&aux_tablet_info);
+      ObTabletBindingMdsUserData &aux_tablet_info);
   static int build_tablet_status(
       common::ObArenaAllocator &allocator,
       const ObTabletTxMultiSourceDataUnit &tx_data,